Extracellular glycosidase which plays an important role in fungal pathogenesis. Involved in cell wall assembly and regeneration, and adherence to host cells. Covalently-linked GPI-modified cell wall protein (GPI-CWP). 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. Belongs to the glycosyl hydrolase 16 family. CRH1 subfamily.