An inhibitor of ceramide-specific glucosyltransferase and β-glucosidase 2 (IC50s = 32 and 81 μM, respectively, for rat recombinant enzymes); leads to a 2.1-, 1.3-, 2.3-, 3.6,- and 9.9-fold increase in the activity of wild-type, S364R, N370S, V15M, and M123t glucocerebrosidase in COS-7 cells; inhibits HIV-1 and HIV-2 infection of PBMCs (IC50s = 282 and 211 μM, respectively) ,