The Catholic church defrocked the Irish-born priest who upset the men's Olympic marathon in Athens last summer by leaping on the front-runner.
"I completely reject this decision," Neil Horan, 57, said after he was informed of the ruling at a meeting with the Archbishop of Southwark in south London yesterday.
"I appeal to the much higher court of heaven and the court of Jesus Christ," said Horan, dressed in his now customary brown kilt, Irish green waistcoat and green beret.
"I now cannot preach, I cannot give out communion - I am little more than a pagan."
"I feel extremely let down," he said. "I have given my life to the church and I feel terrible about how they have handled the whole situation."
Earlier Horan arrived at the Archbishop's House armed with press releases and a mini tape recorder. Before going into the meeting he performed an Irish jig and preached the importance of the bible.
Horan was given a one-year suspended sentence by a Greek court last September after leaping on Brazilian runner Vanderli de Lima during the marathon, ruining his chances of winning the gold medal.
The Roman Catholic priest claimed that he was highlighting the "second coming" of Jesus Christ.
De Lima finished in third place to claim the bronze medal, while Horan -- who last year disrupted the British Grand Prix at Silverstone race track -- pledged never to pull off a similar prank again.
Horan was cleared in London last October of charges of indecency against a seven-year-old girl in 1991.