Binds glycerophospholipids in a barrel-like domain and may play a role in cellular lipid transport (By similarity). Tethers the endoplasmic reticulum to the cell membrane and promotes the formation of appositions between the endoplasmic reticulum and the cell membrane.
Subcellular locations: Cell membrane, Endoplasmic reticulum membrane
Localizes to endoplasmic reticulum-plasma membrane contact sites (EPCS) (, ). Recruited to the cell membrane via the third C2 domain.
Widely expressed with high level in cerebellum and skin.