thiolester hydrolase activity S-formylglutathione hydrolase activity https://github.com/geneontology/go-ontology/issues/30193 molecular_function UM-BBD_reactionID:r0241 Catalysis of the reaction: S-formylglutathione + H2O = formate + glutathione + H+. GO:0018738 MetaCyc:S-FORMYLGLUTATHIONE-HYDROLASE-RXN KEGG_REACTION:R00527 EC:3.1.2.12 Reactome:R-HSA-5693724 RHEA:14961