Phosphoinositide phosphatase that hydrolyzes PtdIns(3)P and PtdIns(4)P. Involved in priming for different defense responses. Predominantly expressed in flowers. By salt stress. The phosphatase catalytic core motif (or RXNCXDCLDRTN motif) from the SAC domain is found in metal-independent protein phosphatases and inositol polyphosphate phosphatases. Impaired in BABA-induced sterility (ibs) and BABA-induced protection against P.syringae, H.parasitica, and salt. Affected in the priming for callose deposition.