The man charged with raping and murdering Jill Meagher in a Brunswick lane is expected to change his plea to guilty of murder in the Supreme Court on Friday.

Adrian Ernest Bayley, 41, was last month committed to stand trial on the charges.

Jill Meagher was abducted and killed in September.

He pleaded not guilty to murder and not guilty to two of the three charges of raping the 29-year-old ABC employee.