Has calcium-dependent phospholipid scramblase activity; scrambles phosphatidylserine, phosphatidylcholine and galactosylceramide (By similarity). Does not exhibit calcium-activated chloride channel (CaCC) activity . May play a role in cell-cell interactions .
Subcellular locations: Cell membrane, Cell junction, Endoplasmic reticulum
Concentrates at sites of cell-cell contact . Shows an intracellular localization according to  and .
Subcellular locations: Cytoplasm, Cytosol
Specifically expressed in epithelial cells of the prostate (at protein level).