The function of ENSG00000155886 (SLC24A2, solute carrier family 24 member 2) is as follows. Calcium, potassium:sodium antiporter that transports 1 Ca(2+) and 1 K(+) in exchange for 4 Na(+) (PubMed:10662833, PubMed:26631410). Required for learming and memory by regulating neuronal Ca(2+), which is essential for the development of synaptic plasticity (By similarity). {ECO:0000250|UniProtKB:Q8BUN9, ECO:0000269|PubMed:10662833, ECO:0000269|PubMed:26631410}.