Rats!

Another high-ranking member of New York’s Colombo crime family has become a federal informant in the FBI probe of the embattled mob organization.

Reynold Maragni, until recently a Colombo captain, has already helped bolster a murder case against former acting Colombo boss Thomas “Tommy Shots” Gioeli, according to sources and court papers filed yesterday by Brooklyn federal prosecutors.

As recently as last week, Maragni wore a hidden “wire” tape recorder to collect evidence about the murder of William “Wild Bill” Cutolo, who was the family’s underboss when he was killed in a Brooklyn basement during a 1999 internal power struggle.

Maragni, playing the role of a ranking mobster concerned about a subordinate who was recently contacted by the FBI, drew out Colombo soldier Vincent Manzo, who detailed how he helped dispose of Cutolo’s body, which was “popped” in the trunk of a car and driven to Long Island, according to transcripts of the recordings.

Manzo, who has not been charged, described how Gioeli directed him to take the body to a wooded section of Farmingdale, LI, which the Colombo family used as one of its “killing fields,” the transcript says.