GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
GO:0014704; C:intercalated disc; ISS:BHF-UCL.
GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
GO:0005085; F:guanyl-nucleotide exchange factor activity; IEA:UniProtKB-KW.
GO:0017080; F:sodium channel regulator activity; IDA:BHF-UCL.
GO:2000010; P:positive regulation of protein localization to cell surface; IDA:BHF-UCL.
GO:0015031; P:protein transport; IEA:UniProtKB-KW.
GO:0042391; P:regulation of membrane potential; IDA:BHF-UCL.
GO:2000649; P:regulation of sodium ion transmembrane transporter activity; IDA:BHF-UCL.