Extracellular glycosidase which plays an important role in fungal pathogenesis. Involved in cell wall assembly and regeneration, filamentation, and adherence to host cells. Covalently-linked GPI-modified cell wall protein (GPI-CWP). Expressed in cell walls of both yeast and hyphae cells. Up-regulated by growth in hypoxic conditions, during cell wall regeneration, by heat stress, as well as by calcineurin, caspofungin, and fluconazole. Expression is also regulated by CAS5, RLM1, and SPF1. The GPI-anchor is attached to the protein in the endoplasmic reticulum and serves to target the protein to the cell surface. There, the glucosamine-inositol phospholipid moiety is cleaved off and the GPI-modified mannoprotein is covalently attached via its lipidless GPI glycan remnant to the 1,6-beta-glucan of the outer cell wall layer. Leads to increased susceptibility to cell wall-perturbing agents. Belongs to the glycosyl hydrolase 16 family. CRH1 subfamily.