Cell wall acid trehalase that catalyzes hydrolysis of the disaccharide trehalose and required for growth on trehalose as carbon source. Plays a role in dimorphic conversion and virulence. alpha,alpha-trehalose + H2O = alpha-D-glucose + beta-D-glucose Expression is repressed by glucose and by HAP43. Lacks acid trehalase activity and decreases hypha formation and infectivity. Belongs to the glycosyl hydrolase 65 family.