Hydrolyzes glycosides, oligosaccharides and hydrophobic glycosides (PubMed:19587102). Possesses gibberellin ester beta-D-glucosidase activity. Can hydrolyze gibberellin A4 beta-D-glucosyl ester in vitro (PubMed:23811195). Hydrolysis of terminal, non-reducing beta-D-glucosyl residues with release of beta-D-glucose. Optimum pH is 4.5. Homodimer. Belongs to the glycosyl hydrolase 1 family.