http://www.israelnationalnews.com/News/News.aspx/260333Interesting quote:
Interior Minister Aryeh Deri said he was granted citizenship due to his “unique contributions” to Israeli society. Now, Deri said, “Amare will be Israel’s ambassador to the world.”
So I am assuming this means he hasn't converted yet (or that Deri didn't want to inadvertently legitimize his conversion). Interestingly enough, if you follow him on social media he's posted pics of him wearing tzitzis and learning gemara
