A church at this location in Nalles (Nals) was first mentioned in writing in 1309: Romanesque foundations of the southern wall of the nave and choir are still preserved today. The present church replaced a Gothic building and was consecrated in 1815. Since 1910 it has served as the Parish Church of Nalles. Its five bells form a "united major and minor motif". They date from 1961, the former bells had to be given up during World War II. A sixth bell is the old death knell, which is the only one that survived the wars.

The interior is a jewel of late baroque architecture, with a ceiling with illusion painting imitating elaborate stucco decoration. The illusion painting above the choir arch represents monumental stucco figures. The parish of Nalles also includes the Church of the Sacred Heart of Jesus in Sirmiano di Sotto from 1843 and the Church of St. Apollonia in Sirmiano di Sopra, which was built at the end of the 12th century. Two other churches no longer exist today: The Church of St. Peter southeast of Nalles was even older than the Church of St. Ulrich, the St. Vigilius Church at the eastern end of the village fell victim to the church reform of Emperor Joseph II.