Enables kinesin binding activity. Predicted to be involved in deadenylation-dependent decapping of nuclear-transcribed mRNA; deadenylation-independent decapping of nuclear-transcribed mRNA; and protein localization to cytoplasmic stress granule. Predicted to be located in cytoplasmic ribonucleoprotein granule. Predicted to be active in P-body. Orthologous to human DCP1A (decapping mRNA 1A). [provided by Alliance of Genome Resources, Apr 2022]