Function
SEL-12 is a probable catalytic subunit of the gamma-secretase complex. This complex is an endoprotease that catalyzes the intramembrane cleavage of integral membrane proteins, such as Notch receptors (lin-12 or glp-1). SEL-12 plays a crucial role in presenilin function, distinguishing it from hop-1 and spe-4. It is required cell-autonomously for proper neurite connectivity of the AIY cholinergic interneurons and their correct functioning in thermotaxis. SEL-12 is also essential for mesodermal patterning of muscle function. Furthermore, it promotes basement membrane gap formation during tissue remodeling.