label: protein-N-terminal asparagine amidohydrolase activity
label_lc: protein-n-terminal asparagine amidohydrolase activity
description: "Catalysis of the reaction: N-terminal L-asparaginyl-[protein] + H+ + H2O = N-terminal L-aspartyl-[protein] + NH4+. This reaction is the deamidation of an N-terminal asparagine residue in a peptide or protein."