Key members of Palang Pracharath will discuss Thamanat Prompow's future as coordinator with micro parties following his "monkey keeper' remark, which has caused a new rift in the coalition government, party secretary-general Sontirat Sontijirawong said on Wednesday.
Mr Sontirat, who is the energy minister, said Palang Pracharath needed to review the role of its controversial coordinator.
He refused to make it clear whether the party will demote Capt Thamanat from the position after the MP for Phayao province likened his job to a "monkey keeper" feeding bananas to the 10 micro parties.
The Prachatham Thai Party certainly found it insulting and announced on Tuesday it was leaving the coalition government, even though Capt Thamanat had apologised to the comment.
Capt Thamanat, who is a deputy agriculture and cooperatives minister, is in the hot seat after a Sydney Morning Herald report on his heroin sentence in Australia.
Prime Minister Prayut Chan-o-cha on Tuesday gave him backing, saying "all past governments also had flaws".
The prime minister pretended not to hear questions from reporters at Government House when they asked about Capt Thamanat's future in the cabinet.