Gpr19 is a circadian clock-controlled orphan GPCR with a role in modulating free-running period and light resetting capacity of the circadian clock.
Yamaguchi Y, Murai I, Goto K, Doi S, Zhou H, Setsu G, Shimatani H, Okamura H, Miyake T, Doi M. Sci Rep. 2021 Nov 17; 11(1):22406. Epub 2021 Nov 17.