Biotin--protein ligase catalyzing the biotinylation of the 4 biotin-dependent carboxylases acetyl-CoA-carboxylase, pyruvate carboxylase, propionyl-CoA carboxylase, and methylcrotonyl-CoA carboxylase.
Subcellular locations: Cytoplasm, Mitochondrion
Widely expressed (, ). Mostly expressed in muscle, placenta and to a lower extent in the brain, kidney, pancreas, liver and lung .