Lifespan

Uncertain.

Ministry

It is possible that Nathanael and Bartholomew are the same person. Nothing certain is known about his particular ministry, although an apocryphal text speaks of his proselyting in Egypt, Persian, India, and Armenia.

Preparation and Calling

Unknown.

Interaction with God

Unknown.

Social Situation

Same as other of the Twelve in general.

Key Teachings

Unknown.

Testimony of Christ

Unknown.

Living with the Prophet

NA.

Sources:

LDS Bible Dictionary

Oxford Companion to the Bible, edited by Bruce M. Metzger and Michael D. Coogan