Any fueled starship with torpedo tubes may perform the Lay Mines mission.
Mines are small devices positioned in a circle around a point in space. Any enemy starship passing through a minefield has a chance of hitting a mine. A mine hit can do a significant amount of damage to a starship (destroying smaller starships) and could slow them down.
Details of the process and effects are described in the minefields page.
See also: Out of Fuel.