KCNK3 (Potassium Two Pore Domain Channel Subfamily K Member 3) is a Protein Coding gene. Diseases associated with KCNK3 include Pulmonary Hypertension, Primary, 4 and Pulmonary Hypertension. Among its related pathways are Cardiac conduction and Neuropathic Pain-Signaling in Dorsal Horn Neurons. GO annotations related to this gene include protein homodimerization activity and protein C-terminus binding. An important paralog of this gene is KCNK9.This gene encodes a member of the superfamily of potassium channel proteins that contain two pore-forming P domains. The encoded protein is an outwardly rectifying channel that is sensitive to changes in extracellular pH and is inhibited by extracellular acidification. Also referred to as an acid-sensitive potassium channel, it is activated by the anesthetics halothane and isoflurane. Although three transcripts are detected in northern blots, there is currently no sequence available to confirm transcript variants for this gene.