Plays a role in phosphate homeostasis. Mediates phosphate export from the cell . Binds inositol hexakisphosphate (Ins6P) and similar inositol polyphosphates, such as 5-diphospho-inositol pentakisphosphate (5-InsP7); these are important intracellular signaling molecules .
Cell membrane ; Multi-pass membrane protein .
Widely expressed. Detected in spleen, lymph node, thymus, leukocytes, bone marrow, heart, kidney, pancreas and skeletal muscle.
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