Predicted to enable peptidase activity. Predicted to be involved in protein targeting to ER; signal peptide processing; and viral protein processing. Predicted to be located in endoplasmic reticulum. Predicted to be part of signal peptidase complex. Is expressed in alimentary system and liver. Orthologous to human SPCS3 (signal peptidase complex subunit 3). [provided by Alliance of Genome Resources, Apr 2022]