Ulep was born in Tuguegarao, Cagayan on June 24, 1962. He studied philosophy and theology at the Santo Tomas University in Manila, where he obtained a bachelor's degree in philosophy, theology and canon law, and a licentiate in philosophy. He was ordained a
priest for the
Diocese of Tugugarao with Archbishop
Ricardo Baccay on 10 April 1987 at the
St. Peter's Cathedral by Archbishop
Diosdado Talamayan, then
Archbishop of Tuguegarao. He subsequently served as: vicar of the parish of San Vincenzo Ferrer, Solana, Cagayan (1987–1992); administrator of the same parish (1992–1993); pastor of the Holy Guardian Angels parish, Tuao, Cagayan (1993–1999); rector of the San Jacinto minor seminary of Alimannao, Cagayan and director of the commission for vocations and seminaries (1999–2005); pastor of the St. Joseph the Worker parish of San José, Baggao, and episcopal vicar of Alcala (2005–2011). Finally, from 2011 up to the present, he has served as pastor and rector of the Santo Niño parish and shrine in San Gabriel, Tuguegarao City, Cagayan, director of the biblical apostolate and president of the priests’ assembly of the archdiocese of Tuguegarao. On May 20, 2017,
Pope Francis appointed him as the fifth bishop of the Territorial Prelature of Batanes following the resignation of Bishop
Camilo D. Gregorio. He was consecrated bishop at
St. Peter's Cathedral on July 29, 2017, by Archbishop Sergio Utleg, then Archbishop of Tuguegarao. Co-consecrators were Archbishop
Marlo M. Peralta of
Nueva Segovia and Bishop
Camilo D. Gregorio, Bishop-Prelate Emeritus of Batanes. He was installed as Bishop-Prelate of Batanes on August 8 of the same year, coinciding with the feast of
Saint Dominic De Guzman, patron of Basco, the capital of Batanes. ==Coat of arms==