Sodium-activated K(+) channel (PubMed:37494189). Acts as an important mediator of neuronal membrane excitability (PubMed:37494189). Contributes to the delayed outward currents (By similarity). Regulates neuronal bursting in sensory neurons (By similarity). Contributes to synaptic development and plasticity (By similarity). {ECO:0000250|UniProtKB:Q6ZPR4, ECO:0000250|UniProtKB:Q9Z258, ECO:0000269|PubMed:37494189}. This is the function of KCNT1 (potassium sodium-activated channel subfamily T member 1, ENSG00000107147).