Minister Matthew Canavan and assistant minister Zed Seselja have invited politicians and staff to a drinks function in the Nationals party room next Tuesday to support the organisation.

There will be an opportunity to donate and the ACL's managing director, Lyle Shelton, will speak.

The ACL is a leading voice among activists opposing same-sex marriage and abortion, and also led a prominent campaign in 2016 opposing an LGBTI-focused anti-bullying program in schools.

BuzzFeed News understands that Canavan and Seselja approached numerous Labor politicians to co-host the drinks, but they all declined.