label: 2-pyrone-4,6-dicarboxylate lactonase activity
label_lc: 2-pyrone-4,6-dicarboxylate lactonase activity
description: "Catalysis of the reaction: 2-oxo-2H-pyran-4,6-dicarboxylate + H2O = 4-carboxy-2-hydroxyhexa-2,4-dienedioate + H+."