Preferential cleavage in proteins: -Xaa-|-Lys- (in which Xaa may be Pro). Binds 1 zinc ion per subunit. Inhibited by chelating agents such as imidazole, alpha,alpha'-bipyridine, and 1,10-phenanthroline. Optimum pH is 7-7.5. Active from pH 5.25 to pH 9. Binds strongly to beta-1,3-glucan and chitin, major polysaccharides constituting the fungal cell wall. Belongs to the peptidase M35 family.