Was first identified based on its probable role in the regulation of pituitary gene transcription. Binds to the prolactin gene (PRL) promoter and seems to activate transcription. Guanine nucleotide exchange factor that activates SARA2. Required for the formation of COPII transport vesicles from the ER. Note: This description may include information from UniProtKB.
Protein type: GEF, misc.; Membrane protein, integral; Transcription factor