Enables mechanosensitived potassium channel activity and temperature-gated cation channel activity. Involved in several processes, including cellular response to alkaline pH; cellular response to temperature stimulus; and potassium ion transmembrane transport. Is integral component of plasma membrane. Orthologous to human KCNK4 (potassium two pore domain channel subfamily K member 4). [provided by Alliance of Genome Resources, Apr 2022]