catalytic activity:Cleaves type-1 transmembrane domains using a catalytic dyad composed of serine and histidine that are contributed by different transmembrane domains.,function:May be involved in regulated intramembrane proteolysis and the subsequent release of functional polypeptides from their membrane anchors.,similarity:Belongs to the peptidase S54 family.,similarity:Contains 2 EF-hand domains.,
Membrane ; Multi-pass membrane protein .