(RNS) — A survey of Conservative rabbis shows that nearly 4 in 10 (38 percent) would officiate at the marriage of a Jew and non-Jew if the Conservative movement lifted its prohibition on these unions.

The survey of 249 Conservative rabbis, conducted by Big Tent Judaism, a New York-based nonprofit that aims to make Jewish communities more welcoming to intermarried Jewish couples, also found that about the same percentage of Conservative rabbis (39 percent) would like their governing body, the Rabbinical Assembly, to discuss reconsidering the prohibition on presiding at intermarriages.

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“The point of us doing this was to let rabbis know that they may not be alone in their thinking if they were thinking along these lines,” said Paul Golin, Big Tent’s associate executive director.

“We  hope it will foster a conversation,” he said, adding that the group isn’t advocating that the Rabbinical Assembly change its policy, but rather that it should open a conversation on it.

The Conservative movement, representing about 18 percent of American Jews, according to the Pew Research Center, occupies a middle place in American Judaism. On one end is the Reform movement, the largest, with about 35 percent of American Jews. Unlike the Conservative movement, it accepts as Jewish those whose mother or fathers are Jewish; Conservative Judaism insists on matrilineal descent.

“This is about our children and our grandchildren, and making sure … that when our children fall in love, they know they can always come back to their spiritual home.”

Reform Judaism also allows its rabbis to preside at interfaith ceremonies, though many Reform rabbis also require that the interfaith couple intend to raise their children as Jews.

On the other end of the Jewish spectrum lies Orthodox Judaism, which claims about 10 percent of American Jews and cleaves closest to Jewish law. It forbids intermarriage and insists on matrilineal descent.

The Big Tent report also showed that 4 percent of Conservative rabbis surveyed had defied the prohibition on officiating at intermarriages. The issue is fraught within Judaism, as more than half of all American Jews marry outside their religion, and the community worries that its small numbers — about 2 percent of the U.S. population — may further dwindle.

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Last year, when a Conservative rabbi asked his Massachusetts congregation to weigh in on whether he should be allowed to marry a Jew to a non-Jew, the question reverberated in Jewish communities across the nation.

“This is about our children and our grandchildren, and making sure that in this glorious open society, that when our children fall in love — with whomever they fall in love — they know they can always come back to their spiritual home,” Rabbi Wesley Gardenswartz said at the time.

But officially, Conservative Judaism has not budged on the issue, even as it has embraced female rabbis and same-sex weddings and welcomed the non-Jewish spouses of congregants into its synagogues.

As Rabbi Julie Schonfied, executive vice president of The Rabbinical Assembly put it, “Jewish tradition says Jewish marriage occurs between Jewish people.”

“As rabbis, our role is to teach, inspire and promulgate that tradition,” she said.

This article originally appeared in Religion News Service.