His person and his name shall be deemed historic core of hagiography Acta Sancti Gallicani. In the former Roman Martyrology was under the 25th June, the entry:
The Holy Gallicanus is named as the founder of the Basilica of Constantine in Ostia. During his Egyptian exile, he is said to have lived as a hermit. In Rome, a small church in Trastevere and a hospital bearing his name. His relics are venerated in Sant'Andrea della Valle.