1,2-dihexadecanoyl-sn-glycero-3-phospho-(1D-myo-inositol-3-phosphate) + CMP + H(+) => 1,2-dihexadecanoyl-sn-glycero-3-CDP + 1D-myo-inositol 3-phosphate
1,2-dihexadecanoyl-sn-glycero-3-phospho-(1d-myo-inositol-3-phosphate) + cmp + h(+) => 1,2-dihexadecanoyl-sn-glycero-3-cdp + 1d-myo-inositol 3-phosphate