phosphoinositide phosphatase family protein. similar to ATSAC1B/IBS2 (IMPAIRED IN BABA-INDUCED STERILITY 2), phosphoinositide 5-phosphatase [Arabidopsis thaliana] (TAIR:AT5G66020.1); similar to hypothetical protein OsI_034692 [Oryza sativa (indica cultivar-group)] (GB:EAY80733.1); similar to Os11g0309000 [Oryza sativa (japonica cultivar-group)] (GB:NP_001067755.1); similar to Os02g0554300 [Oryza sativa (japonica cultivar-group)] (GB:NP_001047117.1); contains InterPro domain Synaptojanin, N-terminal (InterPro:IPR002013)