The government of Portugal is looking into a proposal that would make the nation the sixth European country to legalize gay marriage.

The Associated Press is reporting that the proposal is almost certain to pass, as the “center-left Socialist government has the support of all left-of-center parties, who together have a majority in Parliament. Right-of-center parties oppose the measure.”

The proposal will most likely endure a debate by lawmakers in January.

If approved by Parliament, the proposed law goes to Portugal’s conservative President Anibal Cavaco Silva, who can ratify or veto it. A veto can be overturned by Parliament.

If there is no presidential veto, the first gay marriage ceremonies could take place in April — a month before Pope Benedict XVI is due on a four-day official visit.