magnesium:sodium antiporter activity
Catalysis of the reaction: Na+(in) + Mg2+(out) = Na+(out) + Mg2+(in).
GO:0015081
sodium ion transmembrane transporter activity
is_a
GO:0015095
magnesium ion transmembrane transporter activity
is_a
GO:0140828
metal cation:monoatomic cation antiporter activity
is_a