Found this on a Maryland forum:
Maryland had its sixth player enter the transfer portal Dec. 25 when junior linebacker Ayinde Eley chose to finish his career outside of College Park, Md. Eley, who assumed a backup role in 2020, played in three games this season and finished with 19 tackles and one tackle for loss. He was the subject of a recent team documentary that detailed his comeback from a possible career-ending illness.
The former Good Counsel (Olney, Md.) four-star recruit Eley entered UMD with plenty of fanfare.
So I guess he's transferring for what most people transfer for, more playing time.