You'll need professional help. True lacquering isn't considered a DIY-friendly job. It's tricky to spray on lacquer correctly, and the fumes are highly flammable and quite toxic. In some places, it's against the law to apply lacquer without adequate space and ventilation.
You can approximate the look by applying several coats of high-gloss paint or adding a layer of varnish or polyurethane as a top coat (know that this will make your wall color look slightly darker). While this won't replicate lacquer's sheen exactly, it's a good compromise if you don't have the budget or inclination for the real thing. Fine Paints of Europe also makes a lacquer-finish paint, though it's very pricey.
You can also look for a vinyl wallpaper that has a lacquerlike finish. One line we like: Phillip Jeffries' Lacquered Effect wall coverings.