SLC39A8 (Solute Carrier Family 39 Member 8) is a gene that encodes a transporter protein responsible for the cellular uptake of key divalent metals such as zinc and manganese. This protein supports the maintenance of metal ion balance, which is vital for immune function, brain development, and various other biological processes. Variations in SLC39A8 have been associated with multiple health conditions, including congenital disorders related to glycosylation.