Detroit spokesman Mitch Wigness says Howard has enrolled but must sit out a year because of NCAA transfer rules. He will be eligible to play for the school at the start of the 2012-13 season.
"We're excited he's going to be with us," Detroit coach Ray McCallum told the Detroit Free Press Monday evening. "He's going to be a valuable practice player with his experience. He wanted to leave home (and go to Western), and that's the case with a lot of guys. We're doing some good things, and it was a great opportunity for him to come back home."
Information from The Associated Press was used in this report.