The enzyme, characterized from the bacterium Ignavibacterium album, transfers a glucosyl residue from the non-reducing end of a 1,2-beta-D-glucan to a glucose residue of an acceptor molecule, forming a beta(1,2) linkage. The donor molecule can be as small as sophorose (which contains two glucosyl residues). The enzyme has a very broad specificity for the acceptor, and can act on various aryl- and alkyl-glucosides. In addition, the accepting glucose unit can be in either alpha or beta configuration.
