urocanate hydratase

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ur·o·can·ate hy·dra·tase

an enzyme catalyzing the reaction of water with urocanic acid to produce 4-imidazolone-5-propionic acid, a step in l-histidine catabolism; this enzyme is absent in cases of urocanic aciduria.
Synonym(s): urocanase

u·ro·can·ate hy·dra·tase

(yūr'ō-kan'āt hī'dră-tās)
An enzyme catalyzing the reaction of water with urocanic acid, a step in l-histidine catabolism; this enzyme is absent in cases of urocanic aciduria.