A competitive inhibitor of human lysosomal β-glucosidase (Ki = 0.016-0.025 µM; IC50 = 0.06 µM) that interacts with the catalytic pocket of β-glucosidase, acting as a chemical chaperone that stabilizes and/or promotes the folding of the enzyme; increases lysosomal β-glucosidase activity by 2- to 3-fold in mutant N370S Gaucher fibroblasts.