Disciple and Biographer of Saint Abramius
Ephraim is identified in the sources as the student and disciple of Saint Abramius of Smolensk, who died about the year 1221 after spending some fifty years in monastic life. Abramius resided at the Bogoroditzkaja (Mother of God) monastery, founded by Bishop Ignatius in honor of the Placing of the Robe of the Most Holy Mother of God, and admitted only seventeen brethren after rigorous examination, emphasizing constant prayer and the remembrance of divine judgment.
Ephraim composed a biographical account of Abramius that has survived. According to OrthodoxWiki, a service to Abramius had been compiled by Ephraim by the end of the thirteenth century, placing Ephraim's literary work roughly seventy years after his teacher's death. This hagiographical text is regarded as a primary historical source for Abramius's life and as one of the earliest surviving examples of Russian hagiographical writing. Through this work Ephraim is directly connected to the later canonization record of his teacher, who was glorified by the Russian Orthodox Church at the Makaryev Councils of 1549.