No, she did not convert to Islam. What she DOES share with many liberals is a reflexive sympathy for Islam as the perceived underdog. They join with Muslims to attack Christianity out of liberals' boogeyman of a scary Christian theocracy (like the quote tyranny will come carrying a Bible and US flag or the Handmaids' Tale book by Atwood). All while ignoring Islam's systemic oppression of women throughout the world and multiple real world theocracies (Saudi Arabia, Iran, ISIS, Boko Haram).
This is why liberals can ignore Yazidi sex slaves in 2017 and complain that they are oppressed because Trump wants to end federal funding of abortion. It is how they can ignore forced marriages of Muslim women and female genital mutilation and cry they are horribly oppressed because half of CEOs aren't women.
The worst part is the deliberate ignorance, like when Linda Sansour, and organizer of the group, told them Saudi Arabia is so much better than the US for having several months of paid leave. Never mind jailing of rape victims, arrest if you drive or go outside without a male guardian.