[Isoform Long]: Cell membrane; Multi-pass membrane protein.; [Isoform Short]: Endoplasmic reticulum membrane; Multi-pass membrane protein.; [Isoform gamma]: Endoplasmic reticulum membrane; Multi-pass membrane protein.
Brain, placenta, skeletal muscle, kidney, pancreas, heart, ovary, testis, colon, small intestine, prostate and pancreas. No expression in adult thymus, spleen, lung, liver and peripheral blood leukocytes.