New Jersey Gov. Chris Christie plans to sign a bill Monday barring licensed therapists from trying to make gay minors straight.
New Jersey will be the second state to ban so-called conversion therapy, along with California.
The bill passed both houses of the Legislature with bipartisan support in June.
Gay activists pushing the ban were uncertain what Christie would do.
In a signing note accompanying the bill obtained by The Associated Press that will be made public Monday, Christie says he believes people are born gay and homosexuality is not a sin. That view is inconsistent with his Catholic faith.
The Republican governor also says the health risks of trying to change a child's sexual orientation outweigh concerns over the government setting limits on parental choice.