Stephen Colbert's wikipedia bio states:
Colbert is a practicing Roman Catholic and a Sunday school teacher and an ordained minister with the Universal Life Church Monastery.
These two (bolded) things, according to various media reports and the blogsite of the Universal Life Church Monastery are factually correct, so I'm not asking if they are possible, but whether according to official Catholic doctrine the two are reconcileable?
By way of background information:
The Universal Life Church Monastery (ULC) is a non-denominational, non-profit religious organization famous worldwide for its provision of free, legal ordinations to its vast membership over the internet. The ULC, recognizing the importance of maintaining open hearts and minds, embraces any individual, no matter his or her spiritual background, who wishes to become a member of this family of faith. Since its founding, the Universal Life Church has ordained more than 20 million ministers. - www.themonastery.org/aboutUs
The Picture is of Colbert officiating at the wedding of Mike Cassesso and MaiLien Le using a licence granted to him in the state of New York on the basis of his ULC credential.
Clearly Colbert was not officiating as a priest in the Catholic sacrament of marriage, but do his actions in conducting a non-Catholic wedding violate any particular Church teachings? If so, would it be regarded as a venial sin or a mortal one?