In enzymology, a long-chain-fatty-acyl-glutamate deacylase (EC 3.5.1.55) is an enzyme that catalyzes the chemical reaction

N-long-chain-fatty-acyl-L-glutamate + H₂O ${\displaystyle \rightleftharpoons }$ a long-chain carboxylate + L-glutamate

Thus, the two substrates of this enzyme are N-long-chain-fatty-acyl-L-glutamate and H₂O, whereas its two products are long-chain carboxylate and L-glutamate.

This enzyme belongs to the family of hydrolases, those acting on carbon-nitrogen bonds other than peptide bonds, specifically in linear amides. The systematic name of this enzyme class is N-long-chain-fatty-acyl-L-glutamate amidohydrolase. Other names in common use include long-chain aminoacylase, long-chain-fatty-acyl-glutamate deacylase, long-chain acylglutamate amidase, and N-acyl-D-glutamate deacylase.

• Fukuda H, Iwade S, Kimura A (May 1982). "A new enzyme: long acyl aminoacylase from Pseudomonas diminuta". J. Biochem. 91 (5). Tokyo: 1731–8. PMID 7096313.