FXYD domain-containing ion transport regulator 3 (FXYD3)

Associates with and modulates the activity of this sodium/potassium-transporting ATPase (NKA) which transports Na(+) from the cell and K(+) into the cell (PubMed:17077088). Reduces glutathionylation of the NKA beta-1 subunit ATP1B1, thus reversing glutathionylation-mediated inhibition of ATP1B1 (PubMed:21454534).

Induces a hyperpolarization-activated chloride current when expressed in Xenopus oocytes (PubMed:7836447). .