Acts upstream of or within regulation of ER to Golgi vesicle-mediated transport. Located in COPII-coated ER to Golgi transport vesicle; endoplasmic reticulum exit site; and nuclear outer membrane-endoplasmic reticulum membrane network. Is expressed in Meckel's cartilage and orbito-sphenoid. Orthologous to human YIPF5 (Yip1 domain family member 5). [provided by Alliance of Genome Resources, Apr 2022]