Molecular function

Catalysis of the reactions: D-myo-inositol 1,4,5-trisphosphate + H2O = myo-inositol 1,4-bisphosphate + phosphate, and 1D-myo-inositol 1,3,4,5-tetrakisphosphate + H2O = 1D-myo-inositol 1,3,4-trisphosphate + phosphate.

5PTase activity, D-myo-inositol(1,4,5)/(1,3,4,5)-polyphosphate 5-phosphatase activity, Ins(1,4,5)P3/Ins(1,3,4,5)P4 5-phosphatase activity, inosine triphosphatase activity, inositol polyphosphate-5-phosphatase activity, inositol triphosphate 5-phosphomonoesterase activity, inositol trisphosphate phosphomonoesterase activity, inositol-1,4,5-trisphosphate/1,3,4,5-tetrakisphosphate 5-phosphatase activity, type I inositol-polyphosphate phosphatase activity, type II inositol polyphosphate 5-phosphatase activity

Note that this is a compound function and should be replaced by 'GO:0052659 : inositol 1,3,4,5-tetrakisphosphate 5-phosphatase activity' and 'GO:0052658 : inositol-1,4,5-trisphosphate 5-phosphatase activity'.