N4-(beta-N-acetylglucosaminyl)-L-asparaginase (, aspartylglucosylamine deaspartylase, aspartylglucosylaminase, aspartylglucosaminidase, aspartylglycosylamine amidohydrolase, N-aspartyl-beta-glucosaminidase, glucosylamidase, beta-aspartylglucosylamine amidohydrolase, 4-N-(beta-N-acetyl-D-glucosaminyl)-L-asparagine amidohydrolase) is an enzyme with systematic name N4-(beta-N-acetyl-D-glucosaminyl)-L-asparagine amidohydrolase. This enzyme catalyses the following chemical reaction
This enzyme acts only on asparagine-oligosaccharides containing one amino acid.