COPII receptor activity
Binding specifically to a substance (cargo) to deliver it to a COPII transport vesicle. Cargo receptors span a membrane (either the plasma membrane or a vesicle membrane), binding simultaneously to cargo molecules and coat adaptors, to efficiently recruit soluble proteins to nascent vesicles.
GO:0038024
cargo receptor activity
is_a
SPAC2C4.05 SPAC30C2.05 SPCC613.03 SPBC4F6.05c SPCC1795.10c SPCC970.06