label: 2-oxo-3-(5-oxofuran-2-ylidene)propanoate lactonase activity
label_lc: 2-oxo-3-(5-oxofuran-2-ylidene)propanoate lactonase activity
description: "Catalysis of the reaction: 2-oxo-3-(5-oxofuran-2-ylidene)propanoate + H2O = 3-maleylpyruvate + H+."