Death certificate translation is usually used for inheritance-related matters, but may also be requested in other situations. If you require the certificate for legal purposes, you would have to present a legalised translation of the death certificate. This is also called a certified translation. Otherwise the document does not unfortunately have a legal value.
Should you require a translation of a death certificate for transactions abroad, you will most likely also need en Apostille. Apostille is a document certification procedure for the states members of the Hague Convention of 1961.