phosphoric diester hydrolase activity phosphoribosyl 1,2-cyclic phosphate phosphodiesterase activity https://github.com/geneontology/go-ontology/issues/30193 5-phospho-alpha-D-ribosyl 1,2-cyclic phosphate phosphodiesterase activity MetaCyc:RXN0-6710 GO:0103043 Catalysis of the reaction: alpha-D-ribose 1,2-cyclic phosphate 5-phosphate + H2O = alpha-D-ribose 1,5-bisphosphate + H+. molecular_function RHEA:34795 EC:3.1.4.55