23S rRNA (guanine2445-N2)-methyltransferase (EC 2.1.1.173, ycbY (gene), rlmL (gene)) is an enzyme with systematic name S-adenosyl-L-methionine:23S rRNA (guanine2445-N2)-methyltransferase.
[1] This enzyme catalyses the following chemical reaction The enzyme methylates 23S rRNA in vitro.