Beta-glucanases participate in the metabolism of beta-glucan, the main structural component of the cell wall. It could also function biosynthetically as a transglycosylase (By similarity). Successive hydrolysis of beta-D-glucose units from the non-reducing ends of (1->3)-beta-D-glucans, releasing alpha-glucose. Monomer. The combination of poor nutrition conditions and attachment of mycelia to a hydrophobic solid surface appears to be a major inducing factor. Belongs to the glycosyl hydrolase 5 (cellulase A) family.