N-acetylglucosamine-1-phosphodiester alpha-N-acetylglucosaminidase activity
n-acetylglucosamine-1-phosphodiester alpha-n-acetylglucosaminidase activity
Catalysis of the reaction: glycoprotein N-acetyl-D-glucosaminyl-phospho-D-mannose + H2O = N-acetyl-D-glucosamine + glycoprotein phospho-D-mannose.