Function
Beta-glucosyltransferase is an enzyme, or more specifically an inverting glycosyltransferase(GT). In other words it transfers glucose from uridine diphospho-glucose (UDPglucose)to an acceptor, modified DNA through beta-Glycosidic bond. The role of the enzyme is to protect the infecting viral DNA from the bacteria's restriction enzymes. Glucosylation prevents the virus DNA from being cut up. Furthermore, glucosylation may aid gene expression of the bacteriophage by influencing transcription.
Read more about this topic: DNA Beta-glucosyltransferase
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