GPI-anchored chitinase involved in the degradation of chitin, a component of the cell walls of fungi and exoskeletal elements of some animals (including worms and arthropods). Required to reshape the cell wall at the sites where cell wall remodeling and/or cell wall maturation actively take place such as sites of conidia formation. Random endo-hydrolysis of N-acetyl-beta-D-glucosaminide (1->4)-beta-linkages in chitin and chitodextrins. Localizes at the germ tubes of conidia, at hyphal branching sites and hyphal tips. Expressed specifically highly during conidia germination and in the marginal growth regions of colonies. O-glycosylated but not N-glycosylated. Belongs to the glycosyl hydrolase 18 family. Chitinase class III subfamily.