Has insecticidal activity when consumed by D.melanogaster larvae. Has low chitinase and chitosanase activity. Random endo-hydrolysis of N-acetyl-beta-D-glucosaminide (1->4)-beta-linkages in chitin and chitodextrins. Endohydrolysis of beta-(1->4)-linkages between D-glucosamine residues in a partly acetylated chitosan. Glycosylated; contains galactose.