label: anhydrosialidase activity
label_lc: anhydrosialidase activity
description: "Catalysis of the reaction: an N-acetylneuraminate glycoside = 2,7-anhydro-alpha-N-acetylneuraminate + an alpha-sialyl group. This reaction is the elimination of alpha-sialyl groups in N-acetylneuraminic acid glycosides, releasing 2,7-anhydro-alpha-N-acetylneuraminate."