Function
SULT4A1 is an atypical member of the sulfotransferase family. It exhibits very low affinity for 3'-phospho-5'-adenylyl sulfate (PAPS) and displays minimal catalytic activity towards L-triiodothyronine, thyroxine, estrone, p-nitrophenol, 2-naphthylamine, and 2-beta-naphthol. This suggests a potential role in the metabolism of drugs and neurotransmitters within the central nervous system.