Catalyzes the hydroxylation of dopamine to noradrenaline (also known as norepinephrine), and is thus vital for regulation of these neurotransmitters.
Subcellular locations: Cytoplasmic vesicle, Secretory vesicle lumen, Cytoplasmic vesicle, Secretory vesicle, Chromaffin granule lumen, Secreted
Subcellular locations: Cytoplasmic vesicle, Secretory vesicle membrane, Cytoplasmic vesicle, Secretory vesicle, Chromaffin granule membrane