Mass is celebrated in Norwegian at Christmas and on May 17th (Constitution Day), and many Norwegian ex-patriates, including non-Catholic, take part. Requiem masses are celebrated for Norwegians with connections to Rome. Norwegian pilgrim groups can make an appointment to celebrate Mass here, and at times tourist groups come here for ecumenical services.

The relics of a Roman martyr are interred in the altar. Nothing is known about him except his name, St Saturninus.