The 6-foot-4 swingman will also visit Fresno State, Arizona State, Marquette and San Diego State.
Baker appeared in 28 games at Kentucky this past season as a redshirt freshman, averaging 2.3 points per game while shooting 33 percent from the field and 31 percent from 3.
A former four-star recruit, Baker was the No. 73 player in the 2017 recruiting class. The Los Angeles native sat out the 2017-18 season after undergoing knee surgery in October 2017.
Baker originally committed to Cal in December of 2016, but decommitted a few months later before pledging to Kentucky.
Arizona would need to clear a scholarship in order to make room for him.
“In Jemarl’s case, his injury in his first year and even the early part of this year set him back a little bit, but I still believe he’s an impact player who can score and defend,” UK coach John Calipari said in a statement.
“He’s a better defender than people give him credit for, and we knew we could play him this season in any situation because we knew he was always going to defend. I appreciate everything he did for this program. Like any kid that leaves us, I’ll be watching his career from afar. We’ll always be here for him.”