Phosphatase that specifically hydrolyzes the 5-phosphate of inositol 1,4,5-trisphosphate to inositol 1,4-bisphosphate, and inositol 1,3,4,5-tetrasphosphate to inositol 1,3,4-trisphosphate . Plays a crucial role in the survival of cerebellar Purkinje cells (By similarity).
Cell membrane ; Lipid-anchor . Cell projection, dendrite .
Predominantly expressed in heart, brain, and skeletal muscle (PubMed:8006039). In brain; high level in Purkinje cells (PubMed:8013665).
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