CDP-diacylglycerol--inositol 3-phosphatidyltransferase (CDIPT)

Catalyzes the biosynthesis of phosphatidylinositol (PtdIns) in addition to PtdIns:inositol exchange reaction. May thus act to reduce an excessive cellular PtdIns content.

The exchange activity is due to the reverse reaction of PtdIns synthase and is dependent on CMP, which is closely bound to the enzyme. .