(4,5-dihydro-5-oxofuran-2-yl)-acetate + H2O = 3-oxoadipate + H(+) Aromatic compound metabolism; beta-ketoadipate pathway; 3-oxoadipate from 5-oxo-4,5-dihydro-2-furylacetate: step 1/1. This species can form two 3-oxoadipate enol-lactonases in response to different inducers. The one shown is called enol-lactone hydrolase I by the authors.