 Formiminoglutamase catalyses the fourth step in histidine degradation, acting to hydrolyse N-formimidoyl-L-glutamate to L-glutamate and formamide.Proclavaminate amidinohydrolase is involved in clavulanic acid biosynthesis.Clavulanic acid acts as an inhibitor of a wide range of beta-lactamase enzymes that are used by various microorganisms to resist beta-lactam antibiotics.