SLC16A14 is annotated as a proton-linked monocarboxylate transporter. According to UniProt, it may catalyse the transport of monocarboxylates across the plasma membrane. The NCBI Gene summary is consistent with this: the gene is predicted to enable monocarboxylic acid transmembrane transporter activity and to be involved in carboxylic acid transmembrane transport. These assignments are predictions, so the precise substrates and transport mechanism of monocarboxylate transporter 14 remain to be established experimentally.

The SLC16A14 protein belongs to the major facilitator superfamily and to the monocarboxylate porter family (TC 2.A.1.13). It is localised to the cell membrane, and the NCBI Gene summary predicts it to be active in the plasma membrane. In HGNC the gene sits in the solute carrier family 16 group, which also includes better-characterised monocarboxylate transporters such as SLC16A1, SLC16A3 and SLC16A7. The mouse ortholog is Slc16a14.

The approved name is solute carrier family 16 member 14. Earlier names were solute carrier family 16 (monocarboxylic acid transporters), member 14, and the gene has also been referred to as MCT14 and FLJ30794. Researchers studying the SLC16A14 gene or its product will often compare it with other SLC16 family members to place it within the wider network of membrane transporters that move small organic acids across cellular membranes.