이 유전자는 내피 분화인 G단백질결합(EDG) 수용체 유전자 계열의 일원이다.EDG 수용체는 리소포스포리피드 또는 리소스포싱올리피드를 리간드로 결합하며, 여러 가지 다른 세포 유형에서 세포 신호 전달에 관여한다.이 EDG 수용체 유전자는 무내성이며 특별히 림프 조직에서 발현된다.[5]
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