GPI-anchored cell wall protein involved in stabilizing the cell wall. Not implicated in virulence, heme uptake and biofilm formation. Found anchored in the cell membrane as well as a covalently-linked GPI-modified cell wall protein (GPI-CWP). The CFEM domain is involved in heme-binding and contains 8 cysteines and is found in proteins from several pathogenic fungi, including both human and plant pathogens (By similarity). The CFEM domain adopts a novel helical-basket fold that consists of six alpha-helices, and is uniquely stabilized by four disulfide bonds formed by its 8 signature cysteines (By similarity). The GPI-like anchor contains a phosphoceramide lipid group. 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. Increases susceptibility towards the chitin/beta-glucan-microfibril destabilizing compounds Congo red and calcofluor white. Belongs to the RBT5 family.