Fr Hector Scerri has been appointed by Pope Francis as a consultor at the Holy See's Pontifical Council for the Promotion of Christian Unity.
Fr Scerri, 48, is the university's head of department of dogmatic theology.
He is president of the Theological Commission of the Maltese Episcopal Conference and of the Ecumenical Commission of the Archdiocese of Malta.
He is also chairman of Ecumenical Council's “Christians Together in Malta”.