Catalysis of the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: Na+(out) + Cl-(out) = Na+(in) + Cl-(in).
Catalysis of the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: Na+(out) + Cl-(out) = Na+(in) + Cl-(in). (en)