The 23-year-old winger has joined Lokomotiva until the end of the Croatian First Football League season.
Moharrami signed a five-year contract with Croatian champion Dinamo Zagreb in June 2018 after leaving Iran champion Persepolis.
He replaces Toni Datković who left Lokomotiva to join Spanish team Huesca.
Moharrami was discovered by Croatian coach Dragan Skočić in 2013 in Malavan.