Bifunctional beta-D-glucosidase/beta-D-fucosidase. Activity towards pNP-beta-D-fucoside is about 80-85% of the activity towards pNP-beta-D-glucoside. Also has slight activity (less than 10%) towards pNP-beta-D-galactoside, and very low activity (less than 1%) towards pNP-beta-D-xyloside. Hydrolyzes laminaribiose, sophorose, cellobiose and gentobiose. Not active against maltose, pNP-alpha-D-glucoside or pNP-beta-L-fucoside. Hydrolysis of terminal, non-reducing beta-D-glucosyl residues with release of beta-D-glucose. Hydrolysis of terminal non-reducing beta-D-fucose residues in beta-D-fucosides. Inhibited by Cu(2+), Ag(+) and Hg(+), but not by other cations such as Mg(2+), Ca(2+), Mn(2+) and Co(2+). Inhibited by 1-amino-1-deoxy-D-glucose and p-chloromercuribenzoic acid, but not by EDTA or dithiothreitol. Inhibited by the disaccharides sucrose, lactose and cellobiose. The monosaccharides D-fructose, D-mannose, D-xylose and D-glucose increase the beta-D-fucosidase activity, but not the beta-D-glucosidase activity. D-glucose inhibits the beta-D-glucosidase activity, but promotes the beta-D-fucosidase activity. D-fucose inhibits the beta-D-glucosidase activity and does not significantly affect the beta-D-fucosidase activity. Optimum pH is 5.5 with pNP-beta-D-glucoside as a substrate. Retains more than 90% of its activity between pH 5.0 and 7.0. Retains 70% of its activity at pH 4.5 and 8.5. Optimum temperature is 45 degrees Celsius with pNP-beta-D-glucoside as a substrate. Retains 60% of its activity after 10 minutes incubation at 50 degrees Celsius. Monomer. Belongs to the glycosyl hydrolase 1 family.