intramolecular oxidoreductase activity, interconverting keto- and enol-groups 2,3-diketo-5-methylthiopentyl-1-phosphate enolase activity https://github.com/geneontology/go-ontology/issues/30193 MetaCyc:R82-RXN Catalysis of the reaction: 2,3-diketo-5-methylthiopentyl-1-phosphate = H+ + 2-hydroxy 3-keto-5-methylthiopentenyl-1-phosphate. 2,3-diketo-5-methylthiopentyl-1-phosphate is also known as DK-MTP-1-P, and 2-hydroxy 3-keto-5-methylthiopentenyl-1-phosphate as HK-MTPenyl-1-P. EC:5.3.2.5 molecular_function This function is part of the process of methionine salvage. DK-MTP-1-P enolase activity MasA mtnW GO:0043715 RHEA:18769 E-1