He was a member of the delegation for the negotiations to end the civil war and clan fighting on the planet. He was also his leader's food and wine taster. At the conference he was ordered to drink wine that was suspected of being poisoned. It was not.
Temarek claimed the possessions of fellow clan member Volnoth after he died in 2366. He was pushed aside by Commander William T. Riker when Doctor Beverly Crusher tried to re-enact Volnoth's life. (TNG: "The Vengeance Factor")