Functions as a negative regulator of MYRF in oligodendrocyte differentiation and myelination. Interacts with the C-terminal of MYRF inhibiting MYRF self-cleavage and N-fragment nuclear translocation. The secreted form promotes differentiation of T helper 1 cells (Th1).
Cell membrane ; Single-pass type II membrane protein . Secreted . Secreted, extracellular exosome . Endoplasmic reticulum membrane ; Single-pass type II membrane protein . Secreted by exosomes through a non-classical pathway. .
Widely expressed with high expression in the ovary, pancreas and prostate (PubMed:25946230). Expressed in the eye, particularly in corneal endothelium, iris, ciliary body, sclera, optic nerve, optic nerve head, and retina (PubMed:24852644). Expressed by activated peripheral blood mononuclear cells (PubMed:25946230).