Predicted to enable coreceptor activity and identical protein binding activity. Predicted to be involved in BMP signaling pathway and positive regulation of transcription, DNA-templated. Predicted to act upstream of or within cell adhesion. Predicted to be located in endoplasmic reticulum-Golgi intermediate compartment. Predicted to be anchored component of plasma membrane. Predicted to be active in plasma membrane. Orthologous to human RGMB (repulsive guidance molecule BMP co-receptor b). [provided by Alliance of Genome Resources, Apr 2022]